<template>
  <view>
    <!-- 搜索框 -->
    <view class="search-box">
      <my-search  radius="16" @click="gotoSearch"></my-search>
    </view>
    <!-- 轮播图区域 -->
    <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
      <!-- 循环渲染轮播图的 item 项 -->
      <swiper-item v-for="(item, i) in swiperList" :key="i">
        <navigator class="swiper-item" :url="'/subpkg/goods-detail/goods-detail?goods_id=' + item.goods_id">
           <!-- 动态绑定图片的 src 属性 -->
           <image :src="item.image_src"></image>
         </navigator>
      </swiper-item>
    </swiper>
    <!-- 分类导航区域 -->
    <view class="nav-list">
       <view class="nav-item" v-for="(item, i) in navList" :key="i" @click="Jump(item)">
         <image :src="item.image_src" class="nav-img"></image>
       </view>
    </view>
    <!-- 楼层区域 -->
    <view class="floor-list">
      <!-- 楼层 item 项 -->
      <view class="floor-item" v-for="(item, i) in floorList" :key="i">
        <!-- 楼层标题 -->
        <image :src="item.floor_title.image_src" class="floor-title"></image>
        <!-- 楼层图片区域 -->
        <view class="floor-img-box">
          <!-- 左侧大图片的盒子 -->
         <navigator class="left-img-box" :url="item.product_list[0].url">
            <image :src="item.product_list[0].image_src" :style="{width: item.product_list[0].image_width + 'rpx'}" mode="widthFix"></image>
          </navigator>
          <!-- 右侧 4 个小图片的盒子 -->
          <view class="right-img-box">
             <navigator class="right-img-item" v-for="(item2, i2) in item.product_list" :key="i2" v-if="i2 !== 0" :url="item2.url">
              <image :src="item2.image_src" mode="widthFix" :style="{width: item2.image_width + 'rpx'}"></image>
             </navigator>
          </view>
        </view>
      </view>
    </view>
  </view>
</template>

<script>
  export default {
    data() {
      return {
       // 1. 轮播图的数据列表，默认为空数组
       swiperList: [],  
       navList: [],
       floorList: [] //楼层数据列表
      }
    },
    onLoad(){
      this.getSwiperList()
      this.getnavList()
      this.getfloorList()
    },
    methods:{
      // 获取轮播图数据
    async getSwiperList(){
     const {data} = await uni.$http.get('/api/public/v1/home/swiperdata')
      if(data.meta.status !== 200) return uni.$showMsg()
       this.swiperList = data.message
       uni.$showMsg('数据请求成功')
      },
      // 获取分类导航数据
     async getnavList(){
      const {data}  = await uni.$http.get('/api/public/v1/home/catitems')
      if(data.meta.status !==200) return uni.$showMsg()
      this.navList = data.message
      },
      // 点击跳转函数
      Jump(item){
      if(item.name === '分类'){
         uni.switchTab({
          url: '/pages/cate/cate'
          })
         }
       },
       // 获取楼层数据
      async getfloorList(){
       const {data} = await uni.$http.get('/api/public/v1/home/floordata')  
       if(data.meta.status !==200) return uni.$showMsg()
         // 通过双层 forEach 循环，处理 URL 地址
         data.message.forEach(floor => {
           floor.product_list.forEach(prod => {
             prod.url = '/subpkg/goods_list/goods_list?' + prod.navigator_url.split('?')[1]
           })
         })
       this.floorList = data.message
       },
       // 搜索跳转
       gotoSearch(){
        uni.navigateTo({
         url: '/subpkg/search/search'
        })
       }
    }
  }
</script>

<style lang="scss">
swiper {
 height: 330rpx;
 .swiper-item,image {
   width: 100%;
   height: 100%;
 }
}
.nav-list {
  display: flex;
  justify-content: space-around;
  margin: 15px 0;

  .nav-img {
    width: 128rpx;
    height: 140rpx;
  }
}
.floor-title {
  height: 60rpx;
  width: 100%;
  display: flex;
}
  
  .right-img-box {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
  }
  
  .floor-img-box {
    display: flex;
    padding-left: 10rpx;
  }
  .search-box{
    // 设置定位效果为“吸顶”
    position: sticky;
    top: 0;
    // left: 0;
    // right: 0;
    z-index: 9;
  }
</style>
